How is Japan's consumption tax calculated?

Tax-exclusive: Consumption tax = Amount × Tax rate; Tax-inclusive total = Amount + Tax. Tax-inclusive (reverse): Net amount = Gross ÷ (1 + Tax rate); Tax = Gross − Net.

How should I handle rounding?

Japan's National Tax Agency allows each business to choose its own rounding method as long as it is applied consistently. You can select from truncation (round down), rounding (round half up), or rounding up.

How does the Invoice System handle multiple tax rates?

Under Japan's Qualified Invoice System, rounding is applied once per tax rate to the subtotal, not per line item. For example, if three items are taxed at 10%, you sum them first and then calculate 10% tax with rounding.

Consumption Tax

Japan Consumption Tax Calculator

Calculate Japanese consumption tax (10% / 8% reduced rate) instantly. Supports both tax-exclusive and tax-inclusive modes with configurable rounding.

What is Japan's Consumption Tax?

Japan's consumption tax (消費税 / Shōhizei) is a value-added tax applied to most goods and services. The current standard rate is 10%, introduced in October 2019.

A reduced rate of 8% applies to certain essential items: food and beverages (excluding alcohol and dining out) and newspapers sold under subscription contracts.

Under Japan's Qualified Invoice System (インボイス制度), businesses must issue invoices that clearly show the tax rate and amount for each line item. This calculator helps verify consumption tax amounts for invoice preparation.

Calculate Tax from Amount (Excl. ⇄ Incl.)

Amount (¥)

Tax Rate

Rounding

Amount Type

Excl. Tax (add tax) Incl. Tax (extract tax)

Price (excl. tax) ¥0

Consumption Tax ¥0

Total (incl. tax) ¥0

Multi-Item Tax Calculator (Per-Rate Breakdown)

Invoice System compliant: tax is calculated on the subtotal per rate, not per line item.

Rounding

Item	Amount (excl. tax, ¥)	Rate

Subtotal (excl. tax) ¥0

Total Tax ¥0

Grand Total (incl. tax) ¥0

Create tax-compliant invoices automatically with PASELLY

Handle mixed 10% and 8% line items with auto-calculated tax. Generate Qualified Invoice-ready PDFs for free.

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About This Tool

An essential consumption tax calculator for creating invoices and receipts in Japan. Supports both 10% (standard rate) and 8% (reduced rate), with tax-exclusive (add tax) and tax-inclusive (extract tax) calculation modes. Choose from three rounding methods to match your company's accounting policy.

Formulas

Tax-exclusive: Tax = Price × Rate / Total = Price + Tax
Tax-inclusive: Price = Total ÷ (1 + Rate) / Tax = Total − Price

About Rounding

The National Tax Agency allows businesses to choose their own rounding method, as long as it is applied consistently. Most companies use "round down," but you should follow your organization's internal rules.

Multi-Rate Calculation (Invoice System)

Under Japan's Qualified Invoice System (インボイス制度), rounding must be applied once per tax rate on the subtotal, not on each line item individually. The "Multi-Item Tax Calculator" above follows this rule.

For example, if you have three items at 10%, the tax is calculated on the combined subtotal of those three items, not on each item separately.

Note: The reduced rate (8%) applies to food and beverages (excluding alcohol and dining out) and newspapers sold under subscription contracts.